BGS Hosted Metadata
Arctic sea ice and physical oceanography derived from CryoSat-2 Baseline-C Level 1b waveform observations, Oct-Apr 2010-2018
This dataset presents monthly gridded sea ice and ocean parameters for the Arctic derived from the European Space Agency's satellite CryoSat-2. Parameters include sea ice freeboard, sea ice thickness, sea ice surface roughness, mean sea surface height, sea level anomaly, and geostrophic circulation. Data are provided as monthly grids with a resolution of 25 km, mapped onto the NSIDC EASE2-Grid, covering the Arctic region north of 50 degrees latitude, for all winter months (Oct-Apr) between 2010 and 2018.
CryoSat-2 Level 1b Baseline C observed waveforms have been retracked using a numerical model for the SAR altimeter backscattered echo from snow-covered sea ice presented in Landy et al. (2019), which offers a sophisticated physically-based treatment of the effect of ice surface roughness on retracked ice and ocean elevations. Methods for optimizing echo model fits to observed CryoSat-2 waveforms, retracking waveforms, classifying returns, deriving sea ice freeboard, and converting to thickness are detailed in Landy et al. (In Review). This dataset contains derived sea ice thicknesses from two processing chains, the first using the conventional snow depth and density climatology from Warren et al. (1999) and the second using reanalysis and model-based snow data from SnowModel (Stroeve et al., In Review). Sea surface height and ocean topography grids were derived from only those CryoSat-2 samples classified as leads. Both the random and systematic uncertainties relevant for each parameter have been carefully estimated and are provided in the data files. NetCDF files contain detailed descriptions of each derived parameter.
Funding was provided by ESA Living Planet Fellowship Arctic-SummIT grant ESA/4000125582/18/I-NS and NERC Project PRE-MELT grant NE/T000546/1.
Simple
- Date (Creation)
- 2019-11-14
- Date (Revision)
- 2019-11-14
- Date (Publication)
- 2019-11-14
- Date (released)
- 2019-11-14
- Edition
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1.0
- Unique resource identifier
- https://doi.org/10.5285/cbd2cf78-462a-4968-be20-05f9c125ad10
- Codespace
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doi
- Unique resource identifier
- GB/NERC/BAS/PDC/01257
- Codespace
- Unique resource identifier
- NE/T000546/1
- Codespace
-
award
- Other citation details
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Please cite this item as: Landy, J., & Stroeve, J. (2020). Arctic sea ice and physical oceanography derived from CryoSat-2 Baseline-C Level 1b waveform observations, Oct-Apr 2010-2018 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/cbd2cf78-462a-4968-be20-05f9c125ad10
- Credit
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No credit.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role University of Bristol
Landy, Jack Author University College London
Stroeve, Julienne Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Global Change Master Directory (GCMD) Science Keywords
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- EARTH SCIENCE > Cryosphere > Sea Ice > Ice Depth/Thickness
- EARTH SCIENCE > Cryosphere > Sea Ice > Ice Extent
- EARTH SCIENCE > Cryosphere > Sea Ice > Ice Roughness
- EARTH SCIENCE > Oceans > Sea Ice > Ice Depth/Thickness
- EARTH SCIENCE > Oceans > Sea Ice > Ice Extent
- EARTH SCIENCE > Oceans > Sea Ice > Ice Roughness
- EARTH SCIENCE > Oceans > Sea Surface Topography > Sea Surface Height
- EARTH SCIENCE > Cryosphere > Sea Ice
- EARTH SCIENCE > Oceans > Sea Ice
- Theme
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CryoSat-2
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sea ice
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sea ice freeboard
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sea ice thickness
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sea level
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- Place
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Arctic
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GEMET - INSPIRE themes, version 1.0
- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
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This data is supplied under Open Government Licence v3.0
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
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url
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Climatology, meteorology, atmosphere
- Environment
- Geoscientific information
- Oceans
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- Begin date
- 2010-10-01
- End date
- 2018-04-30
- Supplemental Information
-
It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.
- Title
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European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
- Date (Publication)
- 2008-11-12
- Cited responsible party
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Organisation name Individual name Electronic mail address Role European Petroleum Survey Group
Publisher
- Unique resource identifier
- urn:ogc:def:crs:EPSG::3031
- Version
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6.18.3
Distributor
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Distributor
- Distributor format
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Name Version application/x-hdf application/netcdf image/tiff
- Units of distribution
-
bytes
- Transfer size
- 2362232013
- OnLine resource
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Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=cbd2cf78-462a-4968-be20-05f9c125ad10 Get Data
- Units of distribution
-
bytes
- Transfer size
- 2362232013
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=cbd2cf78-462a-4968-be20-05f9c125ad10 Get Data
- Units of distribution
-
bytes
- Transfer size
- 2362232013
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=cbd2cf78-462a-4968-be20-05f9c125ad10 Get Data
- Hierarchy level
- Dataset
- Statement
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Methodology:
The data is derived from CryoSat-2 Baseline-C Level 1b waveform observations over the Arctic, north of 50 degrees altitude, for 2010 to 2018.
Data collection:
European Space Agency's CryoSat-2.
Data quality:
NetCDF files were produced from the final gridded satellite observations and contain all associated metadata, or details about auxiliary datasets used in the processor. No smoothing or averaging was performed on the 25-km gridded sea ice and sea surface height parameters. A 300-km Gaussian convolution filter was used to smooth artefacts in the dynamic ocean topography grids, before deriving geostrophic currents.
Both the random and systematic uncertainties relevant for each parameter have been carefully estimated and are provided in the data files. NetCDF files contain detailed descriptions of each derived parameter.
Metadata
- File identifier
- cbd2cf78-462a-4968-be20-05f9c125ad10 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2019-11-14
- Metadata standard name
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ISO 19115 Geographic Information - Metadata
- Metadata standard version
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ISO 19115:2003(E)
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Point of contact
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